adjective
- most stuffy, stale, or having an unpleasant musty smell (superlative form of frowsty)
Usage: British English; informal
Examples
- The basement was the frowstiest room in the entire house.
- After being closed up all winter, the cabin had become the frowstiest place imaginable.
- She opened all the windows to air out the frowstiest corners of the attic.
- The old library’s storage room was the frowstiest area they had ever encountered.
- Even with the fan running, this remained the frowstiest office in the building.